feat: Update Proxmox extension with various improvements and bug fixes

- Change listStates method to accept nullable integer for limit parameter.
- Modify TechnitiumDns class to return structured error messages on failure.
- Enhance VNC and xterm popup routes with user authorization checks.
- Update backups view to improve loading states and add unique keys for dynamic elements.
- Refactor cloud-init view to ensure proper data binding and improve user experience.
- Add wire:key attributes to various elements in views for better Livewire performance.
- Improve error handling and user feedback in the firewall view.
- Update server overview and statistics views to handle potential null values gracefully.
- Add new migration files to extend database schema with user-set icons and notes for Proxmox nodes.

extensions/Servers/Proxmox/Livewire/Statistics.php

@@ -79,8 +79,8 @@ class Statistics extends Component
         'error' => null,
     ];
 
-    protected array $cachedServerIps = [];
-    protected array $serverIpCidrs = [];
+    public array $cachedServerIps = [];
+    public array $serverIpCidrs = [];
 
     // Historical comparison settings
     public string $historicalPeriod = '1_hour_ago'; // Options: 1_hour_ago, 2_hours_ago, 6_hours_ago, 12_hours_ago, 24_hours_ago, custom
@@ -152,14 +152,6 @@ class Statistics extends Component
     {
         parent::mount($server);
         
-        // Retry loading VM status if initial load failed (important for chart rendering)
-        $retries = 0;
-        while ($this->status === null && $retries < 3) {
-            usleep(100000); // 100ms delay between retries
-            $this->loadVmStatus();
-            $retries++;
-        }
-        
         $this->server->loadMissing('ipAddresses');
         // Network Analysis is loaded lazily via JavaScript to improve page load speed
         // Initialize error state if not configured to prevent infinite loading
@@ -864,11 +856,14 @@ class Statistics extends Component
         return $connections;
     }
 
-    protected function fetchGraphData(string $graphType, string $timeRange, string $aggregation): void
+    protected function fetchGraphData(string $graphType, string $timeRange, string $aggregation, bool $forceRefresh = false): void
     {
         $cacheKey = 'proxmox-stats-' . $this->server->id . '-' . $graphType . '-' . $timeRange . '-' . $aggregation;
 
         try {
+            if ($forceRefresh) {
+                Cache::forget($cacheKey);
+            }
             // Reduced cache TTL from 60 to 30 seconds for fresher data and faster updates
             $data = Cache::remember($cacheKey, 30, function () use ($timeRange, $aggregation) {
                 $proxmox = new Proxmox;
@@ -2101,15 +2096,20 @@ class Statistics extends Component
         ]);
     }
     
-    public function formatBytes($bytes)
+    public function formatBytes(int|float $bytes): string
     {
-        if ($bytes == 0 || $bytes < 0) return '0 B';
+        if ($bytes == 0) return '0 B';
+        $prefix = '';
+        if ($bytes < 0) {
+            $prefix = '-';
+            $bytes = abs($bytes);
+        }
         $k = 1024;
         $sizes = ['B', 'KB', 'MB', 'GB', 'TB'];
         $i = floor(log($bytes) / log($k));
         if ($i < 0) $i = 0;
         if ($i >= count($sizes)) $i = count($sizes) - 1;
-        return round($bytes / pow($k, $i), 2) . ' ' . $sizes[$i];
+        return $prefix . round($bytes / pow($k, $i), 2) . ' ' . $sizes[$i];
     }
 
     public function getGraphData(string $type): array